题目内容
2x+2.1=24.7
:
=x:
.
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(1)2x+2.1=24.7,
2x+2.1-2.1=24.7-2.1,
2x=22.6,
2x÷2=22.6÷2,
x=11.3;
(2)
:
=x:
,
x=
×
,
x÷
=
×
÷
,
x=
×
,
x=
.
2x+2.1-2.1=24.7-2.1,
2x=22.6,
2x÷2=22.6÷2,
x=11.3;
(2)
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x=
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x=
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